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heliacal setting是什么意思，heliacal setting的翻译，heliacal setting音标、读音、用法和例句_甲百匯小鸡词典
甲百匯小鸡词典

heliacal setting

H 开头单词

基本解释

  • [天文學]偕日落夕沒偕日降

英汉例句

    雙語例句

  • The heliacal rising or setting of a star indicates to within a few days the date in the annual day-cycle.
    星辰偕日陞降，說明了其在幾天內年日循環的日期。

词组短语

    短語

  • heliacal rising and setting 偕日陞降
  • heliacal rising or setting 偕日陞落

专业释义

    天文學

  • 偕日落
  • 夕沒
  • 偕日降